Cooler Master MasterWatt MPX-5501-AMAAB
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Power supplies from the MasterWatt series, belonging to the advanced class. This model has a maximum power of 550 W, while the efficiency is 85%, which is confirmed by the "80 PLUS BRONZE" certificate. This PSU is equipped with a DC / DC converter, thanks to which it is possible to adjust the output voltage at an incredibly fine level. Another important feature is the use of a hybrid cooling system: at a power load of up to 15%, heat is removed only by passive radiators, and in idle (standby) mode and at system startup, the fan of the Cooler Master MasterWatt MPX-5501-AMAAB power supply does not emit extraneous noise.
The fan is supported by a self-lubricating Loop Dynamic Bearing (LDB), which is unique in its kind. The sliding sleeve body is sealed and IP6X protected. This power supply is designed for high-performance computer systems that require increased noise load, energy efficiency and reliability. The MasterWatt power supply line includes power models: 450, 550, 650, 750 and even 1200 watts.
The information in the model description is for reference purposes.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Cooler Master 2026 - new arrivals, bestsellers, and the most relevant models Cooler Master.
Always clarify the specifications and configuration of the product with the online store manager before purchasing.
Catalog Cooler Master 2026 - new arrivals, bestsellers, and the most relevant models Cooler Master.
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Cooler Master MPX-5501-AMAAB-US Cooler Master MasterWatt 550-Watts 100-240V AC 8-4A 50-60Hz 80-Plus Bronze Semi Modular ATX | $198.89 |  | |||
Cooler Master MPX-5501-AMAAB-SF Cooler Master MasterWatt 550-Watts 100-240V AC 8-4A 50-60Hz 80-Plus Bronze Semi Modular ATX | $198.89 | | |||
Cooler Master MPX-5501-AMAAB-AF Cooler Master MasterWatt 550-Watts 100-240V AC 8-4A 50-60Hz 80-Plus Bronze Semi Modular ATX | $198.89 | | |||
Cooler Master MPX-5501-AMAAB-BF Cooler Master MasterWatt 550-Watts 100-240V AC 8-4A 50-60Hz 80-Plus Bronze Semi Modular ATX | $198.89 | | |||
Cooler Master MPX-5501-AMAAB-EF Cooler Master MasterWatt 550-Watts 100-240V AC 8-4A 50-60Hz 80-Plus Bronze Semi Modular ATX | $198.89 | | |||
6 more offer(s)
Series Cooler Master MasterWattCompare using chart →
1500 W, 24+8+8(4+4) pin, 12 x 6+2 pin, SATA 20, Molex 12, ATX, modular, Efficiency 94 %, mining, certificate 80+ Titanium
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 2, ATX, semi-modular, Efficiency 85 %, semi-passive СО, warranty 5 years
650 W, 24+8 (4+4) pin, 3 x 6+2 pin, SATA 9, Molex 4, ATX, semi-modular, Efficiency 85 %, semi-passive СО, warranty 5 years
750 W, 24+8 (4+4) pin, 3 x 6+2 pin, SATA 9, Molex 4, ATX, semi-modular, Efficiency 85 %, semi-passive СО, warranty 5 years
500 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 85 %, warranty 3 years
600 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 85 %, warranty 3 years
Cooler Master MasterWatt configurations
| Price for Cooler Master MasterWatt | ||||
|---|---|---|---|---|
 | Cooler Master MasterWatt MPX-5501-AMAAB | from $198.89 | 11 offers | |
| Cooler Master MasterWatt MPX-6501-AMAAB | from $193.11 | 11 offers | |
| Cooler Master MasterWatt MPX-7501-AMAAB | from $276.04 | 11 offers | |
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550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 5, Molex 4, ATX, semi-modular, Efficiency 85 %, warranty 5 years
650 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 8, Molex 4, ATX, semi-modular, Efficiency 83 %, warranty 3 years
650 W, 24+8 (4+4) pin, 1 x 6 pin, 2 x 6+2 pin, SATA 7, Molex 3, ATX, semi-modular, Efficiency 85 %, warranty 5 years
650 W, 24+8 (4+4) pin, 3 x 6+2 pin, SATA 9, Molex 4, ATX, semi-modular, Efficiency 85 %, semi-passive СО, warranty 5 years
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 3, ATX, semi-modular, Efficiency 87 %, semi-passive СО, certificate 80+ Gold, warranty 7 years
650 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 6, Molex 4, ATX, semi-modular, Efficiency 92 %, certificate 80+ Gold, warranty 7 years
500 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 85 %, warranty 3 years
550 W, 24+8 (4+4) pin, 1 x 6 pin, 2 x 6+2 pin, SATA 9, Molex 3, ATX, Efficiency 90 %, certificate 80+ Gold, warranty 10 years
500 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 90 %, certificate 80+ Gold, warranty 5 years
550 W, 24+8 (4+4) pin, 2 x 6+2 pin, SATA 7, Molex 4, ATX, modular, Efficiency 89 %, backlight, warranty 5 years
650 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 6, Molex 6, ATX, modular, Efficiency 90 %, certificate 80+ Gold, warranty 10 years
650 W, 24+8 (4+4) pin, 4 x 6+2 pin, SATA 6, Molex 3, ATX, Efficiency 89 %, warranty 3 years